baber/WOPTO huggingface dataset:
Patent DE-2435712-A1 (DE)
Title: Semiconducting ceramics based on barium-lead titanate - with a pronounced positive temp. coefft. of specific resistance
Inventor: MINESAKI ICHIHITO
IPC: H01C7/02
Filed: 1974-07-25
Abstract: The ceramic has a compsn. meeting the general formula (Ba1-xPbx)TiO3 with 0  x =0.8, with the addn. of 0.05-0.5 atom. % Nb or Ta, and the material is fired in air or in an atmos. contg. oxygen. The advantage is that no Pb is lost during the firing in air and consistent electric and ceramic props. are obtd. A steep rise in the positive temp. coefft. of resistance can be achieved from 120 degrees C. and this temp. can be altered up to 420 degrees C, by altering the amt. of lead. These elements can be used for current limitation, constant temp. heating, or temp. measurement. The raw materials are BaCO3, TiO2, PbO, SiO2, MnCO3, V2O5, Nb2O5, and Ta2O5, and they are wet-milled in the polyethylene-clad pot-mill for 20 hours, dried and fired at 1100 degrees C. then pulverised and mixed with an aq. soln. of polyvinyl alcohol and granulated. Discs, 13 mm dia. 3 mm thick were pressed at 1000 kg/cm2 and fired at 1250-1400 degrees C. Electrodes of Ni were applied (not electrolytic) with a top layer of Ag for heat-resistance in some cases.
Patent DE-2452834-A1 (DE)
Title: Detector for messages, for several substations - has a multiple pole switch which is connected to points which transmit identification signals in case of a fault
Inventor: SCHOLLENBERGER LOTHAR ING GRAD
IPC: G08B26/00
Filed: 1974-11-07
Abstract: The multiple pole switch (3) is controlled by a counter (5) which is stopped by a fault testing device (6); and there is a call testing device (9) which recognizes calls from a substation (8); and a parallel-series converter (7) is connected to the control inputs of the counter (5) and to the output of the call testing device (9), so that when a signal comes in from a substation (8), the converter (7) transmits in series to the substation the states of the control inputs for the counter (5). The counter output signal state represents in coded form the number of the faulty signal source (1).
Patent DE-2455524-A1 (DE)
Title: Spring soled boot for play or sport - uses rubber bag containing compressed air to provide inbuilt spring for jumping exercises
Inventor: RUEDEL GERHARD ING GRAD
IPC: A63B25/10
Filed: 1974-11-23
Abstract: A bag (3) made of rubber or other suitable material is attached to the sole (1) of the boot (2). The bag (3) is inflated through the valve (4) to a pressure to suit the user. The valve (4) is easily opened to reduce the pressure when required. The spring effect of the air filled bag enables the user to jump to a greater height and the bag is compressed due to impact on returning to the ground. As an alternative metal springs may be used instead of the bag (3). The device may be used by children for playing games or by adults for physical exercises.
Patent DE-2460796-A1 (DE)
Title: Moving sheet curving mechanism - rotary device running in travel direction bends edges upwards
Inventor: AYKUT KURT DIPL ING
IPC: B65H29/70
Filed: 1974-12-21
Abstract: A mechanism particularly for bending upwards and the lengthwise edges of continuously moving paper sheets, either individually or stacked, has a driven rotary curving device (6) running in the direction of travel of the sheets (2). The device can be in the form of curving rings (8) fixed to a rotary shaft (7), and of roof-type contour. Provision can be made for sliding the rings along the shaft, to which they can be secured by leaf springs acting in the radial direction. The desin is cheap to produce and long-lasting, being easily adaptable to different sizes of sheet.
Patent DE-2501088-A1 (DE)
Title: Compressor and condenser aggregate with eccentric axle - has throttle valve to overcome centrifugal forces and produce pressure differences
Inventor: HINTZE RUDOLF
IPC: F25B3/00
Filed: 1975-01-13
Abstract: A compressor-condenser aggregate is in the form of a circulating fan rotating about an eccentric axle in which the liquified coolout medium compressed by the compressor and condenser is transferred to the eccentric axle from the condenser, has a throttle valve (15) to overcome the centrifugal force exerted on the head of fluid to be moved, and the throttle valve (15) produces a pressure difference between the excess pressure produced by the condensation process and the low pressure in the storage collector which is transferred to the condenser by the liquified coolant medium in the eccentric axle.
Patent DE-2504043-A1 (DE)
Title: Multilayer corrugated paper strip - has smooth inner and creped outer layers forming sandwich construction
Inventor: CLEMENS FRANK J
IPC: B32B7/022
Filed: 1975-01-31
Abstract: The strip comprises at least two layers, there being two corrugated strips each between two smooth ones. The innermost strip (11) of paper is smooth, and the outer one or ones (13) of creped paper. The outer and centre ones can be creped, or the centre one smooth and the two outer ones is creped. The corrugated strips (14, 15) can be of different profiles, the pitch of the outer one (15) being smaller than that of the inner one (14). The design allows the strip to be used both for transport and wrapping, and to be rolled up, without causing cracks in the innermost strip.
Patent DE-2506739-A1 (DE)
Title: Intermediate cable switch capsule - has contact mechanism with two screws for cable ends and narrow iron core
Inventor: KRAEMER KLAUS
IPC: H01H15/06
Filed: 1975-02-18
Abstract: The switch capsule has an integrated housing for a contact mechanism surrounded by a shell insertable into the housing. The contact mechanism contains two screws for the cable ends and a narrow iron core, movable between the two screws by an upwards protruding metal guide. The core can be locked in alternative positions by a metal spring inserted into the capsule. The core may have two lateral grooves extending at right angles and parallel to each other and enable the latching of the metal spring. The metal spring is preferably of leaf type of such shape as to fit into the grooves of the iron core. Under the iron core may be situated metal plates in the capsule bottom and connected each with one screw.
Patent DE-2509655-A1 (DE)
Title: Cover for protecting windscreens from frost - is made to adhere to glass of windscreen by means of large number of flexible suction pads
Inventor: RIEDER WALTER
IPC: B05B12/24
Filed: 1975-03-06
Abstract: The invention is intended for the temporary covering of windows when decorating the house or for covering the windscreen and windows of cars to prevent the formation of ice when the cars are parked in the open air at night. The cover (1) is made of a suitable flexible sheet and is provided with a number of uniformly disturbed suction pads (2). The suction pads (2) may be pressed into holes in the sheet (1) or formed integrally with the sheet. A small strap is fastened to one edge of the sheet and is provided with a press tud at its outer end. When the sheet is not in use it can be rolled up and bound with the strap.
Patent DE-2510487-A1 (DE)
Title: Cutting head for cleaning drain pipes - has curved blades to prevent damage to pipe bore
IPC: E03C1/302
Filed: 1975-03-11
Abstract: The cutting head is made of cast steel and has a core in the form of a frustrum of a cone with a concave surface. Six equally spaced blades (6) are arranged around the core with a convex outer contour (5). The thickness of the blades increases towards the root and the blade is set at such an angle that the trailing surface (8) at the larger diameter end (12) is tangential to the conical surface. As the blade surface (8) runs towards the apex (2) of the cutter, its angle of inclination, with respect to the conical core, changes so that the blades are arranged radially with respect to the cutter axis (9).
Patent DE-2514890-A1 (DE)
Title: Medium or high tension cable with conductive layer over insulation - applied by "welding" but allowing easy sepn. from insulation
Inventor: GLANDER FRITZ DR RER NAT
IPC: H01B7/02
Filed: 1975-04-05
Abstract: Medium or high tension cable comprises an inner or outer conductive layer which may consist of cold-crosslinkable or vulcanisable material, e.g. butyl rubber crosslinked with S or S accelerators, disposed adjacent to the insulation. The latter and at least one of the adjacent conductive layers are crosslinked with agents which have no effect on the course of crosslinking of the respective adjacent layer. Pref. the insulation consists of a thermoplastic base material crosslinked with organic peroxides, and the inner and/or outer conductive layer consists of an elastomer crosslinked with S or S cpds. e.g. polychloroprene. The outer conductive layer may be surrounded by a reinforcing layer of metal strips, which is covered by the outer sheath which is made of e.g. PVC.
Patent DE-2517795-A1 (DE)
Title: Thread cutting tool for internal pipe thread - has end face cutting edges inclined at small angle
Inventor: ISHIKURA SOUKIRO
IPC: B23G5/06
Filed: 1975-04-22
Abstract: The thread cutting tool is especially used to cut thread in pipe connecting sleeve or inside pipe ends which are made as castings. Thread cutting will be possible with this tool even if part of the bore inside which the thread is cut is obstructed by protrusions or other faults in the cast part. This is made possible by cutting edges (3) which are provided on the end faces of the cutter. These cutting edges are placed at an angle of between 1.5 and 5 deg. The swarf clearance angle also lies between a value of 1.5 and 5 deg.
Patent DE-2521277-A1 (DE)
Title: Polyurethane-polyurea foam gels from polyethers - with water as chain extender giving stable acid or neutral gels of low density, avoiding use of amines
Inventor: SCHAEPEL DIETMAR DR
IPC: C08G18/10
Filed: 1975-05-13
Abstract: Polyurethane-polyurea foam gels are prepd. by reaction of (a) a pre-polymer contg. NCO groups which is the reaction prod. of an OH-contg. polyether with >40 wt. % ethylene oxide units, with polyisocyanates, at a ratio of NCO/OH >1, with (b) water as chain-extender, in water and/or alcohols as reaction medium. (Hydro)gels with acid to neutral pH can be prepd., whilst with known processes using a mines as chain-extenders only basic gels can be obtd. The gels have lower density than those obtd. by heating in air. The reaction time is relatively long, but can be shortened by addn. of catalysts; adequate time is available for processing the gel, e.g. charing it into moulds. The gels are physiologically more acceptable, because of the absence of amines. The amt. of water is not critical, whereas the amt. of amine must be accurately metered. The gels are stable and no phase sepn. can be seen after long periods of storage.
Patent DE-2526239-A1 (DE)
Title: Drawing drum for pulling wire through a die - using anodised aluminium discs to guide wire on ceramic running rings
IPC: B21C1/14
Filed: 1975-06-12
Abstract: Wire drawing drum or cone is employed to pull wire through a drawing die, and assembled from a row of rings. The novelty is that the discs controlling the sideways movement of the wire are made from aluminium which is free from copper, and pref. made by a chip-forming machining operation; and the surfaces of the discs are anodised to produce a hard layer of alumina 0.001-0.2 mm thick. The aluminium is pref. alloyed with metals other than copper. When aluminium alloys contg. Cu are used for the discs, the discs undergo rapid corrosion due to aggressive drawing lubricants. The invention reduces the corrosion.
Patent DE-2527212-A1 (DE)
Title: Sound recording without moving parts - using variable resistance film technique with ramp function scanning voltages
Inventor: KNOLL MEINHARD
IPC: G06G7/26
Filed: 1975-06-16
Abstract: The sound recording technique uses information which is stored in the form of a variable resistance film which is then scanned via suitable electrodes using appropriate ramp function voltages. The information is stored either in the form of a resistance film of varying thickness, or a resistance film of varying resistivity. In either case the film is arranged between two parallel electrodes to which ramp voltages are applied in such a way that the current to the electrodes is a measure of the film resistance at various points along the film. A third electrode may be added so that the linear ramp component of the current is filtered out, and the stored signal produced directly across attached resistors (R). An oscillator, comparator and control stage, and a ramp generator are used in the scanning network which can drive a whole bank of such units where a considerable amount of information is stored. A switching unit and amplifier accept the output signals from the store.
Patent DE-2527477-A1 (DE)
Title: Mounting clamp system for elevated platforms - has circular clamp device to ensure good fit around telegraph pole or tree trunk
Inventor: SAIER ROBERT
IPC: A01M31/02
Filed: 1975-06-20
Abstract: The platform mounting for the trunks or telegraph poles allows a person to stand or sit to work on elevated supply lines or as an observational platform. A spherically designed clamp fixed around the tree trunk or telegraph pole provides a firm static mounting for the platform section. The entire system is constructed from commercially available materials. A series of tensioning devices are provided to clamp the mounting accurately and firmly. Spikes point radically inward to dig into the wood from a curved plate, whose spacing from the tree or pole is adjusted by a threaded screw.
Patent DE-2528525-A1 (DE)
Title: Purificn of gas derived from gassification of coal under press - for refval of tar, dust and optionally hydrogen sulphide using oil washing
Inventor: HOELTER HEINZ
IPC: C10K1/18
Filed: 1975-06-26
Abstract: In the purification of gas derived from the gasification of coal under pressure, to remove dust, heavy hydrocarbons and entrained H2S by washing with a wash liquid, a wash oil, preferably a tar oil, is used. Advantageously, the wash oil is circulated in closed circuit from which solids and tar are separated continuously and recycled to the gasification reactor. Prevents the blockage of the washing plant liable to occur with water washing as well as reducing the heat losses and the amount of water vapour in the washed gas.
Patent DE-2529213-A1 (DE)
Title: Reinforced concrete section for inspection shafts - has shape between circular and rectangular forms with single sheet steel reinforcement
IPC: E02D29/12
Filed: 1975-07-01
Abstract: The reinforced concrete shaft section is used for water supply and draining systems. These sections are used as inspection shafts. The prefabricated concrete elements combine the static advantages of the standardised circular shaft segments with the advantages of the rectangular shaft segments. The underground channel pipes are more readily connected to rectangular elements than to circular ones. Only one single steel reinforcement layer is used in the walls curved in a certain manner and this steel is able to accommodate tensile forces from the inner and outer side of the section. The slightly curved walls (1) are reinforced by rectangular reinforcement (2). The wall thicknesses may vary or be uniform.
Patent DE-2537650-A1 (DE)
Title: Combined seed and fertilizer drill - incorporates fertilizer spreader and seed drill with compactor rings forming furrows
Inventor: DREYER HEINZ DIPL ING DR
IPC: A01C7/06
Filed: 1975-08-23
Abstract: The front power lift (5) on the chassis (1) has the soil cultivator (6) connected. The middle power-lift (7) has the soil compactor (8) attached. The back power-lift (9) is for attaching any other implements. The speed drill (7) is driven by a chain-drive (13). The variable speed gear (14) and the chain drive (15) are driven by the right wheel (2). The fertilizer spreader (11) is driven by the chain-drive (16). The variable speed-gear (17) and the chain-drive (18) are driven by the left wheel (2). The soil compactor has several compression rollers (19) with pressure rings and attached compactor rings.
Patent DE-2541062-A1 (DE)
Title: Precision speed control for low inertia motor - employing AM of successive motor input pulses
Inventor: MILLIGAN LEE J
IPC: H02P23/22
Filed: 1975-09-15
Abstract: The application is to rapid and precise speed control of small low inertia motors and avoids speed overshoot when accelerating the motor. A speed error detecting circuit generates a signal related to the deviation from a particular set speed. An impulse generator provides power pulses to the motor, these pulses being controlled in amplitude by the error signal acting through the intermediate processing circuit. The amplitude of each successive pulse is set by this circuit with regard to the speed error magnitude, thus as the set speed is approached the power impulse is reduced. The control circuit typically uses digital operating methods.
Patent DE-2543938-A1 (DE)
Title: Dyeing machine lock chamber - has a secure cap with access for a grip to pass through to reduce handling of dyed fabrics
Inventor: VERNAZZA JULIUS DIPL ING DR TE
IPC: D06B23/12
Filed: 1975-10-02
Abstract: A cylindrical housing is attached to a side wall of the dyeing machine. Access through the housing is allowed from the outside through a drilling in the outer screw cap on the end wall, to a globe valve at the dyeing machine end. This allows the grip to be passed through on a rod. The design allows the dyed fabrics to be given minimum handling (only once for cutting), reducing the risk of damaging the dyed character of the material.
Patent DE-2544191-A1 (DE)
Title: Cutter for polyurethane hard foam case in doorway - for concealed mounting of door case
Inventor: RUHNKE GOTTFRIED
IPC: E04F21/00
Filed: 1975-10-03
Abstract: Tool for cutting hard polyurethane foam case in doorway consists of a vertically adjustable profiled metal guide rail, and a carriage which is adapted to the guide rail and which is located in the centre of a rigid horizontal shaft at each end of which equidistant from the carriage is a cutting tool of hard polyurethane foam. Pref. the distance between the cutting tools can be adjusted as desired, so as to conform precisely to the outer dimensions of the door case. After alignment and fixing of the guide rail in the doorway, the carriage is inserted in the top of the guide rail and moved from top to bottom by gentle reciprocation, causing the cutting tools to cut the foam with the correct dimensions and angles.
Patent DE-2545930-A1 (DE)
Title: Housing for high pressure water hydrant - has water connection pipe separated from house by sound absorbing material
Inventor: GAMPPER HAROLD ING GRAD
IPC: E03D9/14
Filed: 1975-10-14
Abstract: The housing for a high pressure water hydrant minimises noise levels during delivery of water. The water coupling pipe (5) is separated from the housing by sound deadening material and is anchored by this material (4) in a bowl shaped lateral projection (3) on the housing wall (2). The sound-absorbing material is rubber vulcanised in place between the projection and water pipe (5). Radially directed support surfaces for the material are provided on the side projection and/or connection pipe in the form of grooves, bumps or passageways in the pipe and through raised surfaces in the inner wall (9) or passageways on the rear wall of the lateral projection.
Patent DE-2548590-A1 (DE)
Title: Broadcast receiver with connection for a traffic radio decoder - has a terminal for application of the received signal to the decoder (NL040576)
Inventor: STOKER ALBERT
IPC: G08G1/09
Filed: 1975-10-30
Abstract: A second terminal is used to apply the signal to the decoder when it contains a traffic message, and the receiver comprises an impedance transformer whose input is connected to the second input terminal, and the output is applied to a signal transmission path in the receiver. When a traffic message is received, the impedance transformer is switched into its conducting state by a switching voltage applied through this second terminal. The apparatus has a FM selector, which may act as a ratio detector and there may be an AM detector and a tape cassette recording and playing device included in the housing of the radio set.
Patent DE-2556630-A1 (DE)
Title: Air pre-heater for force-ventilated cattle stall - recovers latent heat as water vapour in outgoing air condenses
Inventor: REINDL JOSEF
IPC: A01K1/00
Filed: 1975-12-16
Abstract: The heat exchanger used is of rectangular cross section, and with discharge fan at each end. The space between the fans is partitioned into long, rectangular chambers, each open at one end only. Alternate chambers face opposite fans. At their ends remote from the fans, one set of chambers is in communication with the cattle stall, the other, with the open air. The partitions between the chambers are preferable corrugated, both to increase the effective surface of the heat exchanger and to increase the turbulence of the air flow. The floor of the device slopes slightly, so that condensation from the outgoing air can collect in a sump at one end.
Patent DE-2558507-A1 (DE)
Title: DL-phenyl-propanol-amine racemate sepn. - using solubility difference of diastereoisomers optically active pantolactone
Inventor: KINUGASA AKIKAZU
IPC: C07C213/00
Filed: 1975-12-24
Abstract: The sepn. of racemate from dl-phenylpropanolamine (I) comprises reacting (I) or its addn. salt with a mineral acid (pref. HCl or H2SO4) with an optically active pantolactone (II) or a basic salt (pref. a Na or K salt) derived from this, separating the resultant diastereomers (III) using the difference in their solubilities, and decomposing (III) to the corresp. antipodes 1-(I) is a valuable stimulant for the sympathetic nervous system and also an important intermediate for the prodn. of d-pseudo-phenylpropanolamine, laevo-rotatory 7-(2-(1-methyl-2hydroxy-2-phenylethylamino)ethyl)-theophylline etc. d-(I) can be used as reagent for the sepn. of dl-acids into their antipodes. The process is simple and effective.
Patent DE-2601019-A1 (DE)
Title: Screw turning tee bar spanner - has detachable socket and permanent magnet held by dowel pin
IPC: B25B23/12
Filed: 1976-01-13
Abstract: The tee bar spanner is for hexagon head bolts or screws that are sunk unusually deep in a housing, such as the fixing bolts used to hold a valve cover on an engine block. The socket is fixed permanently to the shaft and there is a wooden tee piece and a permanent magnet. The upper end of the shaft (2) has a cross rail (1) with a groove (3) at each end. The lower end (8) has a hole (7) in which the magnet (6) is fitted and also the socket (4). The three parts are held by a dowel pin that fits in a transverse hole (9).
Patent DE-2602114-A1 (DE)
Title: Rectangular interlocking fire bar grid - has spaced lengthways rods with catches at one end and engagement notches at other
Inventor: ARENS DIETER
IPC: E04C2/42
Filed: 1976-01-21
Abstract: The fire grid has a number of closely adjacent cross bars and two lengthways bars at a relatively greater distance from each other which are assemblable by means of several grid fields. The lengthways bars have a catch and an engagement part at their other end. The catches (5) are formed parallel to the grid field plane and crossways to the lengthways bars (3), and are spring pliable. In a normal direction in relation to the grid field plane they engage with movement clearance with the engagement parts (6) of the adjoining grid field.
Patent DE-2605313-A1 (DE)
Title: Mechanical loosening and feeder unit for compacted bulk material - has twin screw conveyor unit and central mounted telescopic suction pipe
Inventor: POHL PAUL
IPC: E02F3/92
Filed: 1976-02-11
Abstract: Mechanical agitating and feeding unit is esp. designed for loosening compacting bulk material in the holds of ships in order to facilitate unloading. It comprises two screw conveyors (4, 5) arranged horizontally next to one another in the axial direction with screw vanes and a suction nozzle (3) serving as the loosening device. Each of the two screw conveyors has its own drive (11, 12, 13, 14) which is independently controllable. The complete unit is attached to the bottom of a vertical telescopic pipe (1) which forms part of a pneumatic unloading system for the ship.